A measuring tape or a ruler
Lawmakers use a key tool known as "logrolling" to secure the passage of public works legislation.
Use a ruler, to find out the area do width times length.
It doesn't have length, but you can use sizeof to find out its size.
mm
You can find out how to use a cable length meter by reading the eHow article describing how. You may also find a short description of how to use it on the back of the packaging it came in.
Use this method.
Use Pythagoras' theorem to find the length of the diagonal of a rectangle.
Use length() method. Example: "java".length();
yards
You use the distance formula.
The longest length would be the hypotenuse. You can use SOHCAHTOA to find the length.
use a ruler a square can be 34cm